WATERLOO — A ground search has turned up very little evidence in the investigation into how and why a bullet struck and killed a woman driving early Sunday on Highway 218.
But tips continued Tuesday to come in from the public, and investigators are following every lead, said Waterloo police Maj. Joe Leibold.
Authorities said Micalla Rettinger, 25, of Cedar Falls, a former University of Northern Iowa softball player, was driving home from work about 2:30 a.m. Sunday when a bullet shattered her driver’s side window and hit her in the neck, killing her. The projectile then struck a front-seat passenger, Adam Kimball, 25. He was transported to University of Iowa Hospitals and Clinics in Iowa City. A hospital spokesman said Tuesday he had been released.
Investigators retrieved a portion of the bullet at the Iowa City hospital. Now police are trying to determine if it is a rifle or handgun round, Leibold said — information that would give authorities information about the weapon’s range.
On Monday, police searched the grounds around the scene — wooded areas and a lake on the edge of George Wyth State Park under the Highway 218 bridges over Brinker Lake and the Cedar River.
Police said there were no reports of other vehicles in the area at the time of the shooting, and there is nothing to indicate the victims were being targeted.
Rettinger graduated in 2016 with a degree in biology. Her father, Steven Rettinger, told the Des Moines Register she was planning to become a dentist, and that she probably picked up Kimball, her boyfriend, from his job at a Cedar Falls bar before the were shot.
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Both Rettinger and Kimball were employees at Mulligan’s Brick Oven in Cedar Falls, confirmed co-owner and manager Ryan Bennett. He declined to say what positions they held or for how long, and said the restaurant may release a statement later.
“We’re just kind of trying to get our employees through it,” he said.
Cedar Valley Crime Stoppers has offered a $7,000 reward for information leading to an arrest. Leibold said authorities want to hear from anyone who noticed anything suspicious in the area at the time of the shooting or anyone who may have a surveillance or trail camera that might be of help.
UNI planned a moment of silence Tuesday night during the team’s softball home season finale at the UNI-Dome.
Amie Rivers of the Waterloo Courier contributed to this report.